Ah Yes! I have tries the sound card on a different system.
System: Energy BIOS
P-IV 1.6 GHz
256 MB RAM
Win XP
again, that stupid AC'97 Sound Card.
Same Problem :-(
In case the AC'97 is not fully disabled, it means it uses a Intell 82802 PCI Bridge which still enables the integrated card anyway. IS there a way out to make the system its onboard sound card forget?